aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/platform/ce4100
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/platform/ce4100')
-rw-r--r--arch/x86/platform/ce4100/Makefile1
-rw-r--r--arch/x86/platform/ce4100/ce4100.c146
-rw-r--r--arch/x86/platform/ce4100/falconfalls.dts430
3 files changed, 577 insertions, 0 deletions
diff --git a/arch/x86/platform/ce4100/Makefile b/arch/x86/platform/ce4100/Makefile
new file mode 100644
index 000000000000..91fc92971d94
--- /dev/null
+++ b/arch/x86/platform/ce4100/Makefile
@@ -0,0 +1 @@
obj-$(CONFIG_X86_INTEL_CE) += ce4100.o
diff --git a/arch/x86/platform/ce4100/ce4100.c b/arch/x86/platform/ce4100/ce4100.c
new file mode 100644
index 000000000000..28071bb31db7
--- /dev/null
+++ b/arch/x86/platform/ce4100/ce4100.c
@@ -0,0 +1,146 @@
1/*
2 * Intel CE4100 platform specific setup code
3 *
4 * (C) Copyright 2010 Intel Corporation
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; version 2
9 * of the License.
10 */
11#include <linux/init.h>
12#include <linux/kernel.h>
13#include <linux/irq.h>
14#include <linux/module.h>
15#include <linux/serial_reg.h>
16#include <linux/serial_8250.h>
17
18#include <asm/ce4100.h>
19#include <asm/prom.h>
20#include <asm/setup.h>
21#include <asm/i8259.h>
22#include <asm/io.h>
23#include <asm/io_apic.h>
24
25static int ce4100_i8042_detect(void)
26{
27 return 0;
28}
29
30#ifdef CONFIG_SERIAL_8250
31
32static unsigned int mem_serial_in(struct uart_port *p, int offset)
33{
34 offset = offset << p->regshift;
35 return readl(p->membase + offset);
36}
37
38/*
39 * The UART Tx interrupts are not set under some conditions and therefore serial
40 * transmission hangs. This is a silicon issue and has not been root caused. The
41 * workaround for this silicon issue checks UART_LSR_THRE bit and UART_LSR_TEMT
42 * bit of LSR register in interrupt handler to see whether at least one of these
43 * two bits is set, if so then process the transmit request. If this workaround
44 * is not applied, then the serial transmission may hang. This workaround is for
45 * errata number 9 in Errata - B step.
46*/
47
48static unsigned int ce4100_mem_serial_in(struct uart_port *p, int offset)
49{
50 unsigned int ret, ier, lsr;
51
52 if (offset == UART_IIR) {
53 offset = offset << p->regshift;
54 ret = readl(p->membase + offset);
55 if (ret & UART_IIR_NO_INT) {
56 /* see if the TX interrupt should have really set */
57 ier = mem_serial_in(p, UART_IER);
58 /* see if the UART's XMIT interrupt is enabled */
59 if (ier & UART_IER_THRI) {
60 lsr = mem_serial_in(p, UART_LSR);
61 /* now check to see if the UART should be
62 generating an interrupt (but isn't) */
63 if (lsr & (UART_LSR_THRE | UART_LSR_TEMT))
64 ret &= ~UART_IIR_NO_INT;
65 }
66 }
67 } else
68 ret = mem_serial_in(p, offset);
69 return ret;
70}
71
72static void ce4100_mem_serial_out(struct uart_port *p, int offset, int value)
73{
74 offset = offset << p->regshift;
75 writel(value, p->membase + offset);
76}
77
78static void ce4100_serial_fixup(int port, struct uart_port *up,
79 unsigned short *capabilites)
80{
81#ifdef CONFIG_EARLY_PRINTK
82 /*
83 * Over ride the legacy port configuration that comes from
84 * asm/serial.h. Using the ioport driver then switching to the
85 * PCI memmaped driver hangs the IOAPIC
86 */
87 if (up->iotype != UPIO_MEM32) {
88 up->uartclk = 14745600;
89 up->mapbase = 0xdffe0200;
90 set_fixmap_nocache(FIX_EARLYCON_MEM_BASE,
91 up->mapbase & PAGE_MASK);
92 up->membase =
93 (void __iomem *)__fix_to_virt(FIX_EARLYCON_MEM_BASE);
94 up->membase += up->mapbase & ~PAGE_MASK;
95 up->iotype = UPIO_MEM32;
96 up->regshift = 2;
97 }
98#endif
99 up->iobase = 0;
100 up->serial_in = ce4100_mem_serial_in;
101 up->serial_out = ce4100_mem_serial_out;
102
103 *capabilites |= (1 << 12);
104}
105
106static __init void sdv_serial_fixup(void)
107{
108 serial8250_set_isa_configurator(ce4100_serial_fixup);
109}
110
111#else
112static inline void sdv_serial_fixup(void);
113#endif
114
115static void __init sdv_arch_setup(void)
116{
117 sdv_serial_fixup();
118}
119
120#ifdef CONFIG_X86_IO_APIC
121static void __cpuinit sdv_pci_init(void)
122{
123 x86_of_pci_init();
124 /* We can't set this earlier, because we need to calibrate the timer */
125 legacy_pic = &null_legacy_pic;
126}
127#endif
128
129/*
130 * CE4100 specific x86_init function overrides and early setup
131 * calls.
132 */
133void __init x86_ce4100_early_setup(void)
134{
135 x86_init.oem.arch_setup = sdv_arch_setup;
136 x86_platform.i8042_detect = ce4100_i8042_detect;
137 x86_init.resources.probe_roms = x86_init_noop;
138 x86_init.mpparse.get_smp_config = x86_init_uint_noop;
139 x86_init.mpparse.find_smp_config = x86_init_noop;
140 x86_init.pci.init = ce4100_pci_init;
141
142#ifdef CONFIG_X86_IO_APIC
143 x86_init.pci.init_irq = sdv_pci_init;
144 x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck;
145#endif
146}
diff --git a/arch/x86/platform/ce4100/falconfalls.dts b/arch/x86/platform/ce4100/falconfalls.dts
new file mode 100644
index 000000000000..e70be38ce039
--- /dev/null
+++ b/arch/x86/platform/ce4100/falconfalls.dts
@@ -0,0 +1,430 @@
1/*
2 * CE4100 on Falcon Falls
3 *
4 * (c) Copyright 2010 Intel Corporation
5 *
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms of the GNU General Public License as published by the
8 * Free Software Foundation; version 2 of the License.
9 */
10/dts-v1/;
11/ {
12 model = "intel,falconfalls";
13 compatible = "intel,falconfalls";
14 #address-cells = <1>;
15 #size-cells = <1>;
16
17 cpus {
18 #address-cells = <1>;
19 #size-cells = <0>;
20
21 cpu@0 {
22 device_type = "cpu";
23 compatible = "intel,ce4100";
24 reg = <0>;
25 lapic = <&lapic0>;
26 };
27 };
28
29 soc@0 {
30 #address-cells = <1>;
31 #size-cells = <1>;
32 compatible = "intel,ce4100-cp";
33 ranges;
34
35 ioapic1: interrupt-controller@fec00000 {
36 #interrupt-cells = <2>;
37 compatible = "intel,ce4100-ioapic";
38 interrupt-controller;
39 reg = <0xfec00000 0x1000>;
40 };
41
42 timer@fed00000 {
43 compatible = "intel,ce4100-hpet";
44 reg = <0xfed00000 0x200>;
45 };
46
47 lapic0: interrupt-controller@fee00000 {
48 compatible = "intel,ce4100-lapic";
49 reg = <0xfee00000 0x1000>;
50 };
51
52 pci@3fc {
53 #address-cells = <3>;
54 #size-cells = <2>;
55 compatible = "intel,ce4100-pci", "pci";
56 device_type = "pci";
57 bus-range = <0 0>;
58 ranges = <0x2000000 0 0xbffff000 0xbffff000 0 0x1000
59 0x2000000 0 0xdffe0000 0xdffe0000 0 0x1000
60 0x0000000 0 0x0 0x0 0 0x100>;
61
62 /* Secondary IO-APIC */
63 ioapic2: interrupt-controller@0,1 {
64 #interrupt-cells = <2>;
65 compatible = "intel,ce4100-ioapic";
66 interrupt-controller;
67 reg = <0x100 0x0 0x0 0x0 0x0>;
68 assigned-addresses = <0x02000000 0x0 0xbffff000 0x0 0x1000>;
69 };
70
71 pci@1,0 {
72 #address-cells = <3>;
73 #size-cells = <2>;
74 compatible = "intel,ce4100-pci", "pci";
75 device_type = "pci";
76 bus-range = <1 1>;
77 reg = <0x0800 0x0 0x0 0x0 0x0>;
78 ranges = <0x2000000 0 0xdffe0000 0x2000000 0 0xdffe0000 0 0x1000>;
79
80 interrupt-parent = <&ioapic2>;
81
82 display@2,0 {
83 compatible = "pci8086,2e5b.2",
84 "pci8086,2e5b",
85 "pciclass038000",
86 "pciclass0380";
87
88 reg = <0x11000 0x0 0x0 0x0 0x0>;
89 interrupts = <0 1>;
90 };
91
92 multimedia@3,0 {
93 compatible = "pci8086,2e5c.2",
94 "pci8086,2e5c",
95 "pciclass048000",
96 "pciclass0480";
97
98 reg = <0x11800 0x0 0x0 0x0 0x0>;
99 interrupts = <2 1>;
100 };
101
102 multimedia@4,0 {
103 compatible = "pci8086,2e5d.2",
104 "pci8086,2e5d",
105 "pciclass048000",
106 "pciclass0480";
107
108 reg = <0x12000 0x0 0x0 0x0 0x0>;
109 interrupts = <4 1>;
110 };
111
112 multimedia@4,1 {
113 compatible = "pci8086,2e5e.2",
114 "pci8086,2e5e",
115 "pciclass048000",
116 "pciclass0480";
117
118 reg = <0x12100 0x0 0x0 0x0 0x0>;
119 interrupts = <5 1>;
120 };
121
122 sound@6,0 {
123 compatible = "pci8086,2e5f.2",
124 "pci8086,2e5f",
125 "pciclass040100",
126 "pciclass0401";
127
128 reg = <0x13000 0x0 0x0 0x0 0x0>;
129 interrupts = <6 1>;
130 };
131
132 sound@6,1 {
133 compatible = "pci8086,2e5f.2",
134 "pci8086,2e5f",
135 "pciclass040100",
136 "pciclass0401";
137
138 reg = <0x13100 0x0 0x0 0x0 0x0>;
139 interrupts = <7 1>;
140 };
141
142 sound@6,2 {
143 compatible = "pci8086,2e60.2",
144 "pci8086,2e60",
145 "pciclass040100",
146 "pciclass0401";
147
148 reg = <0x13200 0x0 0x0 0x0 0x0>;
149 interrupts = <8 1>;
150 };
151
152 display@8,0 {
153 compatible = "pci8086,2e61.2",
154 "pci8086,2e61",
155 "pciclass038000",
156 "pciclass0380";
157
158 reg = <0x14000 0x0 0x0 0x0 0x0>;
159 interrupts = <9 1>;
160 };
161
162 display@8,1 {
163 compatible = "pci8086,2e62.2",
164 "pci8086,2e62",
165 "pciclass038000",
166 "pciclass0380";
167
168 reg = <0x14100 0x0 0x0 0x0 0x0>;
169 interrupts = <10 1>;
170 };
171
172 multimedia@8,2 {
173 compatible = "pci8086,2e63.2",
174 "pci8086,2e63",
175 "pciclass048000",
176 "pciclass0480";
177
178 reg = <0x14200 0x0 0x0 0x0 0x0>;
179 interrupts = <11 1>;
180 };
181
182 entertainment-encryption@9,0 {
183 compatible = "pci8086,2e64.2",
184 "pci8086,2e64",
185 "pciclass101000",
186 "pciclass1010";
187
188 reg = <0x14800 0x0 0x0 0x0 0x0>;
189 interrupts = <12 1>;
190 };
191
192 localbus@a,0 {
193 compatible = "pci8086,2e65.2",
194 "pci8086,2e65",
195 "pciclassff0000",
196 "pciclassff00";
197
198 reg = <0x15000 0x0 0x0 0x0 0x0>;
199 };
200
201 serial@b,0 {
202 compatible = "pci8086,2e66.2",
203 "pci8086,2e66",
204 "pciclass070003",
205 "pciclass0700";
206
207 reg = <0x15800 0x0 0x0 0x0 0x0>;
208 interrupts = <14 1>;
209 };
210
211 gpio@b,1 {
212 compatible = "pci8086,2e67.2",
213 "pci8086,2e67",
214 "pciclassff0000",
215 "pciclassff00";
216
217 #gpio-cells = <2>;
218 reg = <0x15900 0x0 0x0 0x0 0x0>;
219 interrupts = <15 1>;
220 gpio-controller;
221 };
222
223 i2c-controller@b,2 {
224 #address-cells = <2>;
225 #size-cells = <1>;
226 compatible = "pci8086,2e68.2",
227 "pci8086,2e68",
228 "pciclass,ff0000",
229 "pciclass,ff00";
230
231 reg = <0x15a00 0x0 0x0 0x0 0x0>;
232 interrupts = <16 1>;
233 ranges = <0 0 0x02000000 0 0xdffe0500 0x100
234 1 0 0x02000000 0 0xdffe0600 0x100
235 2 0 0x02000000 0 0xdffe0700 0x100>;
236
237 i2c@0 {
238 #address-cells = <1>;
239 #size-cells = <0>;
240 compatible = "intel,ce4100-i2c-controller";
241 reg = <0 0 0x100>;
242 };
243
244 i2c@1 {
245 #address-cells = <1>;
246 #size-cells = <0>;
247 compatible = "intel,ce4100-i2c-controller";
248 reg = <1 0 0x100>;
249
250 gpio@26 {
251 #gpio-cells = <2>;
252 compatible = "ti,pcf8575";
253 reg = <0x26>;
254 gpio-controller;
255 };
256 };
257
258 i2c@2 {
259 #address-cells = <1>;
260 #size-cells = <0>;
261 compatible = "intel,ce4100-i2c-controller";
262 reg = <2 0 0x100>;
263
264 gpio@26 {
265 #gpio-cells = <2>;
266 compatible = "ti,pcf8575";
267 reg = <0x26>;
268 gpio-controller;
269 };
270 };
271 };
272
273 smard-card@b,3 {
274 compatible = "pci8086,2e69.2",
275 "pci8086,2e69",
276 "pciclass070500",
277 "pciclass0705";
278
279 reg = <0x15b00 0x0 0x0 0x0 0x0>;
280 interrupts = <15 1>;
281 };
282
283 spi-controller@b,4 {
284 #address-cells = <1>;
285 #size-cells = <0>;
286 compatible =
287 "pci8086,2e6a.2",
288 "pci8086,2e6a",
289 "pciclass,ff0000",
290 "pciclass,ff00";
291
292 reg = <0x15c00 0x0 0x0 0x0 0x0>;
293 interrupts = <15 1>;
294
295 dac@0 {
296 compatible = "ti,pcm1755";
297 reg = <0>;
298 spi-max-frequency = <115200>;
299 };
300
301 dac@1 {
302 compatible = "ti,pcm1609a";
303 reg = <1>;
304 spi-max-frequency = <115200>;
305 };
306
307 eeprom@2 {
308 compatible = "atmel,at93c46";
309 reg = <2>;
310 spi-max-frequency = <115200>;
311 };
312 };
313
314 multimedia@b,7 {
315 compatible = "pci8086,2e6d.2",
316 "pci8086,2e6d",
317 "pciclassff0000",
318 "pciclassff00";
319
320 reg = <0x15f00 0x0 0x0 0x0 0x0>;
321 };
322
323 ethernet@c,0 {
324 compatible = "pci8086,2e6e.2",
325 "pci8086,2e6e",
326 "pciclass020000",
327 "pciclass0200";
328
329 reg = <0x16000 0x0 0x0 0x0 0x0>;
330 interrupts = <21 1>;
331 };
332
333 clock@c,1 {
334 compatible = "pci8086,2e6f.2",
335 "pci8086,2e6f",
336 "pciclassff0000",
337 "pciclassff00";
338
339 reg = <0x16100 0x0 0x0 0x0 0x0>;
340 interrupts = <3 1>;
341 };
342
343 usb@d,0 {
344 compatible = "pci8086,2e70.2",
345 "pci8086,2e70",
346 "pciclass0c0320",
347 "pciclass0c03";
348
349 reg = <0x16800 0x0 0x0 0x0 0x0>;
350 interrupts = <22 1>;
351 };
352
353 usb@d,1 {
354 compatible = "pci8086,2e70.2",
355 "pci8086,2e70",
356 "pciclass0c0320",
357 "pciclass0c03";
358
359 reg = <0x16900 0x0 0x0 0x0 0x0>;
360 interrupts = <22 1>;
361 };
362
363 sata@e,0 {
364 compatible = "pci8086,2e71.0",
365 "pci8086,2e71",
366 "pciclass010601",
367 "pciclass0106";
368
369 reg = <0x17000 0x0 0x0 0x0 0x0>;
370 interrupts = <23 1>;
371 };
372
373 flash@f,0 {
374 compatible = "pci8086,701.1",
375 "pci8086,701",
376 "pciclass050100",
377 "pciclass0501";
378
379 reg = <0x17800 0x0 0x0 0x0 0x0>;
380 interrupts = <13 1>;
381 };
382
383 entertainment-encryption@10,0 {
384 compatible = "pci8086,702.1",
385 "pci8086,702",
386 "pciclass101000",
387 "pciclass1010";
388
389 reg = <0x18000 0x0 0x0 0x0 0x0>;
390 };
391
392 co-processor@11,0 {
393 compatible = "pci8086,703.1",
394 "pci8086,703",
395 "pciclass0b4000",
396 "pciclass0b40";
397
398 reg = <0x18800 0x0 0x0 0x0 0x0>;
399 interrupts = <1 1>;
400 };
401
402 multimedia@12,0 {
403 compatible = "pci8086,704.0",
404 "pci8086,704",
405 "pciclass048000",
406 "pciclass0480";
407
408 reg = <0x19000 0x0 0x0 0x0 0x0>;
409 };
410 };
411
412 isa@1f,0 {
413 #address-cells = <2>;
414 #size-cells = <1>;
415 compatible = "isa";
416 reg = <0xf800 0x0 0x0 0x0 0x0>;
417 ranges = <1 0 0 0 0 0x100>;
418
419 rtc@70 {
420 compatible = "intel,ce4100-rtc", "motorola,mc146818";
421 interrupts = <8 3>;
422 interrupt-parent = <&ioapic1>;
423 ctrl-reg = <2>;
424 freq-reg = <0x26>;
425 reg = <1 0x70 2>;
426 };
427 };
428 };
429 };
430};
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-17 20:27:25 -0400